Sprinkler



G. BUELNA April 14, 1931.

SPRINKLER Filed April 1, 1929 Gaaf/a ation/w11 Patented Apr. 14, 1931 Uru'rl-:D STATES GUADALUPE BUELNA, F SANTA BARBARA, CALIFORNIA BPRINKLEB.

Application led April 1, 1929.

My invention relates to a water distributing means and it has particular reference to a sprinkler adapted more especially for use in watering lawns, golf links and other surfaces and to be set in operation by the passage of water therethrough.

Objects of the invention are to provide a simple sprinklin device which may be convenlently concea ed below the surface to be irrigated whereby the beauty of the lawn will not be marred and the sprinkling device will not be an obstruction; to provide a sprinkler in which the nozzle or water disersing head is elevated above the surface to be watered and maintained in elevated position, during the sprinkling, by the pressure of water to provide a sprinkler in which the distribution of water shall occur only when the nozzleis elevated above the surface and to provide a sprinkler in which the water dispersing nozzle shall be rotated during the distribution of water.

These and other objects are accomplished by a preferred form of embodiment of the invention more articularly described in the following speci cation, in connection with the accompanying drawing which forms a part thereof.

In the drawing Fi 1 is an elevational half sectional view showing my invention the parts being in normally inoperative position.

Fig. 2 is a longitudinal section showing the parts of my invention in operative position.

Fig. 3 is a sectional elevation of the nozzle.

Fig. 4 is a plan view of the water letting nozzle, the view being taken along ine 4.--4 Fig. 2 looking in the direction of the arrow.

Fig. 5 is a section on line 5-5 Fig. 2, and Fig. 6 is an elevational view showing my sprinkler installed for use.

Generically considered, my invention consists of a sprinkler unit arranged to be placed in the ground and below the surface thereof and provided with a sprinkler member that is arran ed to be projected above the ground surface y water pressure and to be intermittently rotated while thus projected. In

Serial No. 351,589.

practice, a number of the sprinkler units are connected to a source of water supply and disposed 'at such intervals that a complete wetting of the surface is effected, the operation of each sprinkler being automatic as soon as water or other'fluid is caused to travel throu h the mains to which the units are connecte In a more specilicsense, and referring particularly to the form and design of the device illustrated, my invention comprises a body 1, composed preferably of two separable sections 2 and 3, the section 2 being formed at one end for threaded attachment to a water main 4, Fig. 6, and provided at the other end with an enlarged chamber 5 with which the passageway 6 in the section 2 directl communicates. The chambered end of t e section 2, as shown in Figs. 1 and 2, is provided with a threaded flange 7 for connecting therewith the flange 8 provided on the bottom of an enlarged compartment 9, constituting an integral part of t e section 3, and which compertinent is separated from the chamber 5 y a plate 10 suitably carried by and secured in the top of said chamber. This plate is provided with a central opening 10 and with preferably equably spaced ports 11 angularly penetrating said plate for causin the water or other fluid to issue therefrom 1n theform of tangential jets, for purposes to be explained more fully hereinafter. Operatively disposed within the respective sections 2 and 3 of the bod 1 is a pipe 12 arranged to be elevated above t 1e ground surface, as shown in Figs. 2 and 6, by water pressure and,

through a nozzle 13 carried by said ipe 12 to disperse water passing therethroug For this purpose, the lower part of the ipe 12 constitutes substantially a piston, t e elements co-operating to ive this function to the lower end of the pipe eing represented by a wall, plug or other member 14 inset beyond the end of said lower part and completely i obstructing the passage of any fluid, and 'by an extension 15 at the end of said lower part. which extension is of a diameter to permit an easy sliding movement within the bore 6 of the section 2 without permitting an water to escape between it and the inner'wal of secpartment 9 and is o the sprinkling.

tion 2. Thus when the pipe 12 is in the nor- -mall inoperative position shown in Fig. 1,

in W ich position the nozzle 13 is retracted below the ound surface, and the water is turned on, t e iston end of the pipe 12 within the bore 6 o the section 2, will be elevated thereby, against the tension of a spring 16, one end of which is connected to a pin 17 within the lower part of the pipe 12 and the other end of which is connected to a pin or other device 18, that is swivelled in a transverse bar 19 provided near the bottom of said lower part of the section 2. As seen in Fig. 1, when in retracted position, the piston end of the pi e 12 rests upon the transverse bar 19, and t e contracted spring 16 is housed within the lower part o the pipe 12. The pipe 12, as seen 1n Figs. 1 and 2 extends through the opening 10 in said plate 10, which divides the chamber 5 from the comrable relatively thereto and to the body 1. t is provided with lateral openings 20 intermediate its length, which openings 20, when the pipe 12 is in operative position, as shown in Fig. 2, communicate with the compartment 9 and through which the water in said compartment enters said pipe, eventually discharging through the nozzle or s rinkler head 13. From the foregoing it will e observed, that so long as the piston part of the pipe 12 is within the bore 6 of the section 2, no water can escape through the pipe. But so soon as, owing to the water pressure, the pipe 12 is elevated so that the bottom or extension 15 thereof moves past the terminus of said bore 6 and into the chamber 5, a substantial portion of the water passes into said chamber, then through the ports 11 in said plate 10v into the compartment 9 and then through the openings 20 in said pipe 12, which openin 20 are now in free communication with t e compartment 9. The pressure of the Water operates to maintain the pipe 12 in elevated position against the tension of the spring 16 and the dispersion of water throug the nozzle 13 will continue so long as the pipe is held elevated by water pressure. When the Water is shut off, the

spring 16 will retract the pipe 12 to the normal osition, shown in Figs. 1 and 3.

It 1s very desirable and most necessary for a thorough wetting of the surface that the sprinkler pipe 12 be caused to alter its positlon, so that the largest possible area may be watered, and it is desirable that this changing of position be continuous during I have illustrated in the drawing a simple means for causing the rotation of the sprinkler pipe 12 continuously with intervals of rest, such means cominfr into play only1 when the pipe is elevated an actuable b t e tangential jets of Water discharging t rough the ports 11 in the plate 10. Referring to Figs. l and 2, the pipe 12 is shown provided with an annular shoulder 21,

upon which is arranged to rest a collar 22, housed in a recess 23 in the section 3 of the body 1, by which it is also guided in its vertical movement. This collar 22 is provided with a lever which consists of opposed horizontal arms 22 terminating in vertical legs 22, which extend to within a short distance of the inner wall of the compartment 9, the arms 22 and legs 22 constituting substantially a lever. Loosely resting upon the plate 10 and surrounding the pipe 12 is a hollow cylindrical member 24 eccentrically disposed with relation thereto so that a portion of the inner wall thereof will be beyond at least one of the ports 11 in the plate 10, as seen in Figs. 2 and 5 and in direct line with one ot the jets of water issuing tangentially from said ports. During the rotative movement of said hollow cylindrical member 24 produced by the successive impingement of the jets of water from the ports 11, said member 24 which operates within the area defined by the legs 22 of the lever periodically.

brushes against first one leg 22" of the lever and then against the other, and in so doing causes a rotation of the collar 22, which frictionally communicates its motion to the pipe 12, which is maintained in elevated floating position by Water pressure. In order to insure a communication of the rotative movement of the collar 22 to the pipe 12, the shoulder 21 and collar 22 may be provided with mutually engaging surfaces 25, Fig. 1. As the pipe 12 is intermittently rotated, the spring 16 will also rotate with it, and the swvelling connection with the bar 19 provides for this movement of the spring. From Fig. 1 it will be seen that when the ports are in retracted position, the legs 22l of the lever will rest upon the plate 10, but when the pipe 12 is elevated as shown, in Fig. 2, the shoulder 21 thereof will engage the collar 22 and elevate it so that the legs 22" are suspended. This occurs practically at the same time that the'lower part of the pipe 12 admits the water to the chamber 5.

What I claim is:

1. A sprinkler comprising a hollow body arranged for attachment at one end to a water supply and provided intermediate its length with a chamber, a sprinkler pipe having openings, means normally holding said v said sprinkler pipe, means within said body to divide the water into a plurality of jets, and means acted upon by said jets and in frictional engagement with said pipe to rotate the same intermittently. l

2. A s rinkler comprising a hollow body provide with an' enlarged water receiving chamber and formed for attachment to a water supply, a pipe within said body havin sprinkler openings andinlet openings, an provided with means normally closing conimunication between said body and chamber and acted upon by water pressure to project said pipe beyond said body and simultaneously establish communication between the inlets in said -pipe and said chamber, a lever on said ipe, an actuator for said lever, and means or jettin water into said chamber and a ainst sai actuator while said pi is projected thereby to provide an intermittent rotation of said pipe while the water is passing through the sprinkler openings therein.

In testimony whereof I have set m hand.

GUADALUPE BUE NA. 

